How to get same texture on both side in render?
I will tell the trick. Delete the material and create it again if it is simple. If it was complex, then create a new material that is different from the material you want. Next, go to edit mode and select all the faces by pressing shift and selecting all the faces. Go to materials and click on the bluish metal material, or any material you want. Make sure the faces are selected. Below the materials, you will find assign option. Click on that. It will be assigned to the whole object, even the backside. I have used this trick a lot of times and it works perfectly and it will be rendered. For this to work, you have to make sure though that even the faces on the backside are selected. Hope it helps.
Cheers,
Aster17